Pith Number

pith:4LKYAPKJ

pith:2010:4LKYAPKJGY7D4FLHU2NVDEPISF

not attested not anchored not stored refs pending

Spectroscopic Evidence for a 5.4-Minute Orbital Period in HM Cancri

A. Rau, D. Steeghs, G.H.A. Roelofs, G. Nelemans, P.J. Groot, T.R. Marsh

arxiv:1003.0658 v1 · 2010-03-02 · astro-ph.SR

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4LKYAPKJGY7D4FLHU2NVDEPISF}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T02:08:47.417115Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e2d5803d49363e3e1567a69b5191e8917a58ed4dc0926d64b04bfe174e5f7309

Aliases

arxiv: 1003.0658 · arxiv_version: 1003.0658v1 · doi: 10.48550/arxiv.1003.0658 · pith_short_12: 4LKYAPKJGY7D · pith_short_16: 4LKYAPKJGY7D4FLH · pith_short_8: 4LKYAPKJ

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/4LKYAPKJGY7D4FLHU2NVDEPISF \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: e2d5803d49363e3e1567a69b5191e8917a58ed4dc0926d64b04bfe174e5f7309

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4eee9f68ec6295ae592d0722870926cd557114afa36523d4c32d7eaec9e7dfe5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2010-03-02T19:35:41Z",
    "title_canon_sha256": "0b28f132dd4542e877694f7238086de26383e55a42e2832c4bd627f69dfd8130"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1003.0658",
    "kind": "arxiv",
    "version": 1
  }
}